linux-kernel - Re: [PATCH] tools: bpf_jit_disasm: check for klogctl failure

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Message-Id: <20160508.233331.1216073258499869420.davem@davemloft.net>
Date:	Sun, 08 May 2016 23:33:31 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	daniel@...earbox.net
Cc:	colin.king@...onical.com, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] tools: bpf_jit_disasm: check for klogctl failure

From: Daniel Borkmann <daniel@...earbox.net>
Date: Fri, 06 May 2016 00:46:56 +0200

> On 05/06/2016 12:39 AM, Colin King wrote:
>> From: Colin Ian King <colin.king@...onical.com>
>>
>> klogctl can fail and return -ve len, so check for this and
>> return NULL to avoid passing a (size_t)-1 to malloc.
>>
>> Signed-off-by: Colin Ian King <colin.king@...onical.com>
> 
> [ would be nice to get Cc'ed in future ... ]
> 
> Acked-by: Daniel Borkmann <daniel@...earbox.net>

Applied.